If using a Macintosh computer, additional software is required in order to transfer files.
For a quick overview of Verizon Cloud, watch this video.
Connect the device to a computer using the supplied USB cable.
If prompted to allow access to your data, tap Allow.
Touch and hold the Status bar (at the top) then drag to the bottom.
The image below is an example.
From the Android System section, ensure File Transfer is selected.
If necessary, select the current option (e.g., Charging, Image transfer, etc.) then in the 'Use USB for' section, tap Transferring files.
Launch File Explorer or Windows Explorer.
Using the computer keyboard, press Windows+E ( +E) keys.
Alternatively, right-click Start then click Open Windows Explorer or File Explorer.
Using File or Windows Explorer, navigate: Galaxy Note9 > Phone > Music.
If you want to store the files on the memory card, navigate: Galaxy Note9 > Card then choose the location of the files.
Use the computer to copy music and other audio files into the folder.
For any accompanying artwork in JPEG format, rename the art file albumart.jpg and copy into the same folder as the music files.
To further organize files, create a subfolder in the newly created music folder and copy desired music files into it.
Disconnect the USB cable from the computer when finished.